During a sale the price of a computer was reduced by 20%. After the sale the price was increased back to the original price. By what percent was the price increased to restore it to the original price
Let the original price of the computer be $100.
During the sale, the price was reduced by 20%, so the sale price was 0.80 * $100 = $80.
To restore the price back to the original $100, the price needs to be increased by $100 - $80 = $20.
To find the percent increase, we calculate: (Increase in price / Original price) * 100% = ($20 / $80) * 100% = 25%.
Therefore, the price needed to be increased by 25% to restore it to the original price.